3 phase ac motor speed control circuit diagram

... detect the outputs of an induction motor, we can use this motor controller to control an induction machine. ã TMS320F2 43 DSP controller. This is manufactured by the Texas Instruments Company ... Design………………………………. 9 3. 1. The basic control format…………………………… 9 3. 2. The existing motor controller……………………… 10 3. 3. Current sensing module……………………………… 11 3. 4. The speed sensor…………………………………… ... rated speed operation, the flux has to be decreased like an inverse function of speed. By weakening the rotor flux, the induction machine can reach speeds that are four times the nominal speed...

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Ngày tải lên: 18/12/2013, 22:06

... ++ = ++ F H G I K J ++ F H G I K J = ì +ì+ì = ì ++ bgb g b gb b g b g 2 2 5 23 4 5 6 836 3 10 6 33 34 10 2 6 036 10 6 836 3 10 4 11 632 9 3 g A block diagram for this open-loop system is shown below: 1 Ls R+ 1 Js ... root-locus domain. Mechatronics Kevin Craig DC Motor / Tachometer Closed-Loop Speed Control System 24 Mechatronics DC Motor / Tachometer Closed-Loop Speed Control System 1. Introduction This ... Mechatronics Kevin Craig DC Motor / Tachometer Closed-Loop Speed Control System 21 Table 1. Specifications of the Honeywell 22VM51-020-5 DC Motor with Tachometer Motor Characteristics Units Values...

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Ngày tải lên: 21/11/2013, 13:45

... Thêm R add nối tiếp cuộn dây phần ứng Example 1: Example 2: Example 3: nh lut Bio-Savart: nh lut Faraday: ( ) BlIeF r r r ì= () l.Bve r r r ì= ...

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Ngày tải lên: 03/01/2014, 19:44

... 32 0 1,11 250 620 37 0 1 ,36 30 0 720 420 1,62 2486.12. 030 00. 125 30 00 38 00 39 0 265 25,5 50 120,2 56,6 080 1,15 160 460 30 0 1, 43 200 540 34 0 1,74 250 39 00 640 39 0 2,14 30 0 740 440 2, 53 2486.12.05000. ... 36 0 235 21 25 075,2 28 ,3 040 0,44 160 430 270 0,55 200 510 31 0 0,67 250 610 36 0 0, 83 300 710 410 0,98 2486.12.01500. 125 1500 1900 37 0 245 24 36 095,2 42,4 060 0, 73 160 440 280 0,91 200 520 32 0 ... 2, 53 2486.12.05000. 125 5000 6400 405 280 27,5 65 150,2 70,7 100 1,90 160 6500 475 31 5 2 ,33 200 6600 555 35 5 2,82 250 6600 655 405 3, 43 300 6600 755 455 4,05 Dimensions for SPC Gas Spring 2486.12. Technical...

Ngày tải lên: 22/01/2014, 02:20

... or nonsinusoidal back emf waveforms. Machines with sinusoidal back emfs may be controlled so as to achieve nearly con- stant torque; however, machines with a nonsinusoidal back emf may be less ... Current-regulated-inverter based speed control. r* i ds i qs r* i abcs Plant Current Regulator 122 3 P λ' m * T e 0 P 2 Speed Control Current Command Synthesizer v dc T1-T6 Σ * 546 PERMANENT-MAGNET AC MOTOR DRIVES ... v E E r0 36 22 = ⎧ ⎨ ⎪ π π three -phase rectifier single -phase rectifier ⎪⎪ ⎩ ⎪ ⎪ (14.4-2) r L L r eu c eu c = 3 2 π ω π ω three -phase rectifier single -phase rectifieer ⎧ ⎨ ⎪ ⎪ ⎩ ⎪ ⎪ (14.4 -3) ...

Ngày tải lên: 16/02/2014, 18:54

... 6,57 7,75 6, 73 5,56 - Experiment * 6,0 12 ,3 19,2 29,0 33 ,0 Analysis 6,5 13, 4 21,0 31 ,6 - 20%TiO 2 + 20%W800 + 60% AKAVINA polyester (sample type B) Error % 8 ,33 8,94 9 ,30 8,96 - Note: ... )            =+       ∂∂ ∂ + + ∂ ∂ + ∂ ∂ − ∂∂ ∂ ++ ∂ ∂ =+       ∂∂ ∂ + + ∂ ∂ + ∂ ∂ − ∂∂ ∂ ++ ∂ ∂ −= ∂ ∂ + ∂ ∂ 0 12 2 0 12 2 2 2 55 1 2 2 44 2 2 44 1 32 3 ,1 3 3 2 2 44 1 2 2 55 2 2 55 1 32 3 ,1 3 3 2 ψ ψψψ ϕ ϕϕϕ ψϕ I yxA DD xA D yA D I hyx w DD y w D I yxA DD yA D xA D I hyx w DD x w D hI z yx xyxyy yxy xyxyy yxx (3) ... bending deflection 3- phase composite Concentrate force Deflection (mm) 1kN 3kN 6kN 10kN Ultimate deflection Experiment * 7,6 14,2 20,8 32 ,4 34 ,3 Analysis 8,1 15 ,3 22,2 34 ,2 - 10%TiO 2 ...

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Ngày tải lên: 16/03/2014, 12:20

... covering mouth when coughing Acid-fast bacilli on sputum smear No acid-fast bacilli on sputum smear Not receiving adequate treatment Receiving adequate treatment for 2 -3 weeks Health care workers ... TB. Annex A .3 Review of Tuberculosis Infection Control The presence of tubercle bacilli on a sputum smear indicates that the patient may be expelling tubercle bacilli Work practice and administrative ... facilities. The main environmental control is natural and mechanical ventilation. TB infection means that tubercle bacilli are in the body but the immune system is keeping them under control ...

Ngày tải lên: 22/03/2014, 18:20

... -8 d1 d2 d3 d4 d1d2 d3d4 d1 d2 d3 d4 d1 d2 d3 d4 d1d2 d3d4 d1d2 d3d4 Theo [3] , ta có được ) 3 cos() 6 cos( 3 2 1 0 i i o v v d β π α π −−= (1) ) 3 cos() 3 cos( 3 2 2 0 i i o v v d β π α π +−= ... 1 2 3 4 5 6 1 -3 +1 +6 -4 +9 -7 -3 +1 -6 +4 +9 -7 +3 -1 -6 +4 -9 +7 +3 -1 +6 -4 -9 +7 2 +2 -3 -5 +6 -8 +9 +2 -3 +5 -6 - 8 +9 -2 +3 +5 -6 +8 -5 -2 +3 -5 +6 +8 -9 3 -1 ... i i o v v d β π α π +−= (2) ) 3 cos() 3 cos( 3 2 3 0 i i o v v d β π α π −+= (3) ) 3 cos() 3 cos( 3 2 4 0 i i o v v d β π α π ++= (4) 432 110 ddddd −−−−= (5) Tổng d 1 + d 2 + d 3 + d 4 <=...

Ngày tải lên: 14/05/2014, 22:37

... (,TCKQlb) Q CK CLR K J FlipFlopJK(,JCKKQnCLRlb) Mx1 Sel 0 1 2 3 Mux(4,Mx1) In0 In1 In2 In3 Out Sel Sel 0 1 2 3 Mux(4,,L) Sel 0 1 2 3 Mux(4,,T) Sel 0 1 2 3 Mux(4,,LT) Figure 44: The FlipFlop and Mux macros, with variations. according to their ... allow the creation of diagrams both by programming and by interactive graphics. Most recently, SVG 33 thinlines (number) gen set line thickness in points threeD init 3D initialize 3D transformations thyristor(linespec,chars) ... label on right side of the element rot3Dx(radians,x,y,z) 3D rotates x,y,z about x axis rot3Dy(radians,x,y,z) 3D rotates x,y,z about y axis rot3Dz(radians,x,y,z) 3D rotates x,y,z about z axis rotbox(wid,ht,type)...

Ngày tải lên: 23/05/2014, 10:53

... As a result, the speed of a closed-loop control system (that is, without loss of surface) is determined by the time constant 0 0 i G K τ . Feedback speed, the speed of the actuator, is limited ... line traces of the calibration grating with the step height equal to 25 nm. At a constant speed of 30 àm/s (a), with a dynamic control (b), and with a dynamic control and at a variable speed ... proportional-integral-differential controller for high -speed atomic force microscopy. Rev Sci Instrum 2006, 77:0 837 04. 3. Orun B, Necipoglu S, Basdogan C, Guvenc L: State feedback control for adjusting...

Ngày tải lên: 21/06/2014, 17:20

... reasons in a 3 phase motor Split Phase Motor  Can be reversed by changing connections to any one winding  Has a high starting current  Used in simple domestic machines Split Phase Motor  A ... magnetic field Single Phase AC Motors Capacitor Start – Capacitor Run Motor  This type is similar to the last but has:  Better torque  Improved power factor ... Capacitor Start Motor  Similar in effect to the split phase motor  Capacitor causes current in start winding to lead voltage  Start and Run windings are approximately 90° out of phase ...

Ngày tải lên: 27/06/2014, 19:20